Lipomatous hemangiopericytoma of the stomach: A case report and a review of literature

Figure 1 Histological findings of gastric lipomatous hemangiopericytoma by hematoxylin and eosin stains. A: Hemangiopericytoma-like areas in the lipomatous hemangiopericytoma (LHPC) showing a patternless architecture of oval to spindle cells surrounding the ectatic thin-walled branching vessels (HE, × 100); B: The clusters of mature adipocytes in the LHPC (HE, × 40); C: The nonatypical, ill-defined tumor cells had a weakly eosinophilic cytoplasm and contained spindled nuclei (HE, × 200). HE: Hematoxylin and eosin.

Figure 2 Immunohistochemical findings for vimentin and CD34. The tumor cells immunohistochemically expressed vimentin (A) and CD34 (B) (immunoperoxidase technique with hematoxylin counterstain, × 100).